Trolley assembly using a shock absorber trolley and method of use
CA 2369131 A1 · Owner: Wright, Aaron A. · Inventors: Mcdonald, Clayton; Mackenzie, Robert; Wright, Aaron A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shock absorber trolley has a trolley frame including trolley wheels (7) a , rearward cam, and a shock absorbing mechanism linked to the rearward cam. The trolley is especially adapted for use in a trolley assembly employed for bias banking of assembly (10) loads (13). The shock absorbing mechanism decelerates an adjacent trolley assembly during accumulation by absorbing impact energy when the leading trolley (1) of the adjacent trolley assembly strikes the rearward cam of the shock absorber trolley. When employed as an intermediate trolley (3) in a trolley assembly, the absorption of energy minimizes both noise generation and swaying of the assembly load during the biased banking …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.